Hybrid coating utilizing polyurethane resin, polyaspartic resin and monomers capable of undergoing ring opening metathesis polymerization

Abstract

A coating composition includes a polyol resin; a polyaspartic resin; monomers capable of undergoing ring opening metathesis polymerization; an isocyanate curing agent; and a metathesis catalyst. The coating composition may further include a solvent; a filler; an adhesion promoter; a rheology modifier; and/or a pigment. The polyol resin may include tetramethyl-1,3-cyclobutanediol. The isocyanate curing agent may include an aliphatic polyisocyanate (e.g., a hexamethylene diisocyanate trimer).

1 . A coating composition comprising:
 a polyol resin;   a polyaspartic resin;   monomers capable of undergoing ring opening metathesis polymerization;   an isocyanate curing agent; and   a metathesis catalyst.   
     
     
         2 . The coating composition of  claim 1 , further comprising:
 a solvent;   a filler;   an adhesion promoter;   a rheology modifier; and   a pigment.   
     
     
         3 . The coating composition of any one of  claim 1 , wherein the polyol resin comprises tetramethyl-1,3-cyclobutanediol. 
     
     
         4 . The coating composition of  claim 1 , wherein the isocyanate curing agent comprises an aliphatic polyisocyanate. 
     
     
         5 . The coating composition of  claim 4 , wherein the aliphatic polyisocyanate comprises a hexamethylene diisocyanate trimer. 
     
     
         6 . The coating composition of  claim 1 , further comprising:
 dibutyl tin dilaurate.   
     
     
         7 . The coating composition of  claim 1 , further comprising:
 a flow and levelling agent.   
     
     
         8 . The coating composition of  claim 1 , further comprising:
 a light stabilizer.   
     
     
         9 . The coating composition of  claim 1 , further comprising:
 a cure accelerator.   
     
     
         10 . A coating composition kit comprising:
 (A) a first part comprising:
 a polyol resin; 
 a polyaspartic resin; and 
 monomers capable of undergoing ring opening metathesis polymerization; and 
   (B) a second part comprising:
 a metathesis catalyst; and 
 an isocyanate curing agent. 
   
     
     
         11 . The coating composition kit of  claim 10 , wherein the first part (A) further comprises:
 a filler;   a flow and levelling agent;   a pigment;   a rheology modifier;   dibutyltin dilaurate;   a light stabilizer; and   a cure accelerator.   
     
     
         12 . The coating composition kit of  claim 10 , wherein the second part (B) further comprises:
 a rheology modifier; and   a flow and levelling agent.   
     
     
         13 . The coating composition kit of  claim 11 , wherein the filler comprises barium sulfate. 
     
     
         14 . The coating composition kit of  claim 11 , wherein the pigment comprises titanium dioxide and/or carbon black. 
     
     
         15 . The coating composition kit of  claim 11 , wherein the light stabilizer comprises a liquid hydroxyphenyl-triazine (HPT) UV absorber. 
     
     
         16 . The coating composition kit of  claim 11 , wherein the light stabilizer comprises a hydroxyphenyl-benzotriazole UV absorber. 
     
     
         17 . The coating composition kit of  claim 10 , wherein parts A and B are formulated at a stoichiometric ratio of 1:1+/−10%. 
     
     
         18 . The coating composition kit of  claim 10 , wherein part A comprises from about 10 to about 40 wt % of the polyol resin, from about 0.1 to about 10 wt % of the polyaspartic resin, and from about 0.1 to about 30 wt % of the monomers capable of undergoing ring opening metathesis polymerization. 
     
     
         19 . The coating composition kit of  claim 10 , wherein part A comprises from about 15 to about 35 wt % of the polyol resin, from about 0.25 to about 5 wt % of the polyaspartic resin, and from about 1 to about 20 wt % of the monomers capable of undergoing ring opening metathesis polymerization. 
     
     
         20 . The coating composition kit of  claim 10 , wherein part A comprises from about 20 to about 30 wt % of the polyol resin, from about 0.5 to about 2.5 wt % of the polyaspartic resin, and from about 2 to about 10 wt % of the monomers capable of undergoing ring opening metathesis polymerization.